Messier 101 (M101) is a spiral galaxy in the Ursa Major constellation. M101 is also known as the Pinwheel Galaxy. Its alternative designation is NGC 5457.
Image taken using the Schulman Foundation’s 24-inch telescope on Mt. Lemmon, AZ. Local telescope operation and gray scale frames by Adam Block, University of Arizona. LLRGB image processing by JDS.
In remembrance of Mary Efron.
Click for larger view and more details (including purchasing options).
